"General named pipe failure occurred in the Point to Point Protocol engine" event occurs in Windows NT 3.5 (129968)


The information in this article applies to:

  • Microsoft Windows NT Workstation 3.5
  • Microsoft Windows NT Server 3.5
This article was previously published under Q129968

SYMPTOMS

The following error may occur in the event log when you attempt to authenticate with a third party PPP server using MD5 authentication:

Event ID 20066
General named pipe failure occurred in the Point to Point Protocol engine.

Data is 6 Hex.

CAUSE

Code specific to Microsoft CHAP (MD4) is being executed regardless of the authentication type. This code verifies that password length does not exceed the 14 character password length allowed in Microsoft networking. The password length for MD5 authentication may exceed 14 characters.

STATUS

Microsoft has confirmed this to be a problem in Windows NT version 3.5. A fix to this problem is in development, but has not been regression-tested and may be destabilizing in production environments. Microsoft does not recommend implementing this fix at this time. Contact Microsoft Product Support Services for more information on the availability of this fix.

NOTE: Microsoft Windows NT U.S. Service Pack 2 must be installed before you install this fix. If it is not, RASPHONE will fail.

Modification Type:MajorLast Reviewed:12/4/2004
Keywords:KB129968
©2004 Microsoft Corporation. All rights reserved.